Top definition
A psychological disorder where women who are around 200kg believe that they are 50kg and can wear very tight or small clothes. The opposite of anorexia.
James: Dude, those booty shorts are holding way too much booty.

Fisher: Looks like a serious case of nanorexia.
by Belmont Valerius November 23, 2009
Get the mug
Get a nanorexia mug for your father Bob.